worms and worm gears provide an effective answer for power transmitting worm & worm wheel applications requiring high-ratio rate reduction in a limited space using right position (90°), non-intersecting shafts. When properly applied, worms and worm gears supply the smoothest, quietest type of gearing.
Because the efficiency of a worm equipment drive depends on the lead angle and quantity of begins on the worm – and because increased efficiency is always an objective, the ratio ought to be kept only possible. To run correctly, worms and worm gears used together will need to have the same diametral pitch and threads.
Our complete line of worms and worm gears could be ordered 
through the Boston Gear Guaranteed Same Time Shipment System for the quickest delivery possible.